Cradle of Filth isn't even death metal. They are melodic black metal.
Also, I don't understand what you mean by "satan bands." Are you talking about bands that happen to have anti-Christian lyrics? Well, as a matter of fact, several bands like that happen to be "good death metal," contrary to what you've stated.

Here are good death metal bands:

Amon Amarth
Behemoth
Brujeria (they're a joke band, kinda)
Cryptopsy
Die Apokalyptischen Reiter
Dying Fetus
Edge of Sanity
Extol
Misery Index
Pan-Thy-Monium
Pig Destroyer (they're grindcore, not death metal, but I thought I'd mention them anyway)
Pungent Stench
Suffocation
Vader